HEAVYWEIGHT 13-ounce, 100% cotton FR duck 11.5 ounce FR quilt lining: FR modacrylic batting quilted to FR twill face cloth Brass front zipper with Nomex® FR tape plus inside and outside protective flaps with hook-and-loop closure for electric-arc protection Two lower front pockets Two inside patch pockets with FR hook-and-loop closures Nomex® FR rib-knit cuffs and waistband Attached quilt lined hood with adjustable Nomex® FR drawcord Back length: Large Regular 29 inches: Large Tall: 31 inches Carhartt FR and NFPA 2112/CAT 4 labels sewn on zipper flap Meets the performance requirements of NFPA 70E and is UL® Classified to NFPA 2112